/// <summary>
/// Returns a transcoded file from the server.
/// </summary>
/// <param name="state">The current <see cref="StreamState"/>.</param>
/// <param name="isHeadRequest">Whether the current request is a HTTP HEAD request so only the headers get returned.</param>
/// <param name="httpContext">The current http context.</param>
/// <param name="transcodingJobHelper">The <see cref="TranscodingJobHelper"/> singleton.</param>
/// <param name="ffmpegCommandLineArguments">The command line arguments to start ffmpeg.</param>
/// <param name="transcodingJobType">The <see cref="TranscodingJobType"/>.</param>
/// <param name="cancellationTokenSource">The <see cref="CancellationTokenSource"/>.</param>
/// <returns>A <see cref="Task{ActionResult}"/> containing the transcoded file.</returns>
public static async Task <ActionResult> GetTranscodedFile(
StreamState state,
bool isHeadRequest,
HttpContext httpContext,
TranscodingJobHelper transcodingJobHelper,
string ffmpegCommandLineArguments,
TranscodingJobType transcodingJobType,
CancellationTokenSource cancellationTokenSource)
{
// Use the command line args with a dummy playlist path
var outputPath = state.OutputFilePath;
httpContext.Response.Headers[HeaderNames.AcceptRanges] = "none";
var contentType = state.GetMimeType(outputPath);
// Headers only
if (isHeadRequest)
{
httpContext.Response.Headers[HeaderNames.ContentType] = contentType;
return(new OkResult());
}
var transcodingLock = transcodingJobHelper.GetTranscodingLock(outputPath);
await transcodingLock.WaitAsync(cancellationTokenSource.Token).ConfigureAwait(false);
try
{
TranscodingJobDto?job;
if (!File.Exists(outputPath))
{
job = await transcodingJobHelper.StartFfMpeg(state, outputPath, ffmpegCommandLineArguments, httpContext.Request, transcodingJobType, cancellationTokenSource).ConfigureAwait(false);
}
else
{
job = transcodingJobHelper.OnTranscodeBeginRequest(outputPath, TranscodingJobType.Progressive);
state.Dispose();
}
var stream = new ProgressiveFileStream(outputPath, job, transcodingJobHelper);
return(new FileStreamResult(stream, contentType));
}
finally
{
transcodingLock.Release();
}
}
/// <summary>
/// Get audio stream.
/// </summary>
/// <param name="transcodingJobType">Transcoding job type.</param>
/// <param name="streamingRequest">Streaming controller.Request dto.</param>
/// <returns>A <see cref="Task"/> containing the resulting <see cref="ActionResult"/>.</returns>
public async Task <ActionResult> GetAudioStream(
TranscodingJobType transcodingJobType,
StreamingRequestDto streamingRequest)
{
if (_httpContextAccessor.HttpContext == null)
{
throw new ResourceNotFoundException(nameof(_httpContextAccessor.HttpContext));
}
bool isHeadRequest = _httpContextAccessor.HttpContext.Request.Method == System.Net.WebRequestMethods.Http.Head;
// CTS lifecycle is managed internally.
var cancellationTokenSource = new CancellationTokenSource();
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
_httpContextAccessor.HttpContext.Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_encodingHelper,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
if (streamingRequest.Static && state.DirectStreamProvider != null)
{
StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, true, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
var liveStreamInfo = _mediaSourceManager.GetLiveStreamInfo(streamingRequest.LiveStreamId);
if (liveStreamInfo == null)
{
throw new FileNotFoundException();
}
var liveStream = new ProgressiveFileStream(liveStreamInfo.GetStream());
// TODO (moved from MediaBrowser.Api): Don't hardcode contentType
return(new FileStreamResult(liveStream, MimeTypes.GetMimeType("file.ts")));
}
// Static remote stream
if (streamingRequest.Static && state.InputProtocol == MediaProtocol.Http)
{
StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, true, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
var httpClient = _httpClientFactory.CreateClient(NamedClient.Default);
return(await FileStreamResponseHelpers.GetStaticRemoteStreamResult(state, httpClient, _httpContextAccessor.HttpContext).ConfigureAwait(false));
}
if (streamingRequest.Static && state.InputProtocol != MediaProtocol.File)
{
return(new BadRequestObjectResult($"Input protocol {state.InputProtocol} cannot be streamed statically"));
}
var outputPath = state.OutputFilePath;
var outputPathExists = File.Exists(outputPath);
var transcodingJob = _transcodingJobHelper.GetTranscodingJob(outputPath, TranscodingJobType.Progressive);
var isTranscodeCached = outputPathExists && transcodingJob != null;
StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, streamingRequest.Static || isTranscodeCached, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
// Static stream
if (streamingRequest.Static)
{
var contentType = state.GetMimeType("." + state.OutputContainer, false) ?? state.GetMimeType(state.MediaPath);
if (state.MediaSource.IsInfiniteStream)
{
var stream = new ProgressiveFileStream(state.MediaPath, null, _transcodingJobHelper);
return(new FileStreamResult(stream, contentType));
}
return(FileStreamResponseHelpers.GetStaticFileResult(
state.MediaPath,
contentType));
}
// Need to start ffmpeg (because media can't be returned directly)
var encodingOptions = _serverConfigurationManager.GetEncodingOptions();
var ffmpegCommandLineArguments = _encodingHelper.GetProgressiveAudioFullCommandLine(state, encodingOptions, outputPath);
return(await FileStreamResponseHelpers.GetTranscodedFile(
state,
isHeadRequest,
_httpContextAccessor.HttpContext,
_transcodingJobHelper,
ffmpegCommandLineArguments,
transcodingJobType,
cancellationTokenSource).ConfigureAwait(false));
}
